The plant parts which consist of two generations- one within the other (1) pollen grains inside the anther (2) germinated pollen grain with two male gametes (3) seed inside the fruit (4) embryo sac inside the ovule (a) (1) only (b) (1), (2), and (3) (c) (3) and (4)

The plant parts which consist of two generations-
one within the other
(1) pollen grains inside the anther
(2) germinated pollen grain with two male gametes
(3) seed inside the fruit
(4) embryo sac inside the ovule
(a) (1) only (b) (1), (2), and (3)
(c) (3) and (4)
by

1 Answer

Answer :

(d) (1) and (4).
by

Related questions

Consider the following statements about pollination. 1. Transfer of pollen grains from the anther to ovules in the same flower or a different f lower is called pollination. 2. The pollination by wind is called anemophily. 3. Pollination is a prerequisite for seed and fruit development in all flowering plants. 4. Seeds may develop in some water ferns without pollination. Which of the above statement/s is/are correct? (a) 1 and 3 (b) 1, 2 and 4 (c) Only 2 (d) 1, 2, 3 and 4

Description : Consider the following statements about pollination. 1. Transfer of pollen grains from the anther to ovules in the same flower or a different f lower is called pollination. 2. The pollination by wind is called anemophily. 3. Pollination is a ... 1 and 3 (b) 1, 2 and 4 (c) Only 2 (d) 1, 2, 3 and 4

Last Answer : Ans:(c)

What does the filiform apparatus do at the entrance into ovule? (a) It brings about opening of the pollen tube. (b) It guides pollen tube from a synergid to egg. (c) It helps in the entry of pollen tube into a synergid. (d) It prevents entry of more than one pollen tube into the embryo sac

Description : What does the filiform apparatus do at the entrance into ovule? (a) It brings about opening of the pollen tube. (b) It guides pollen tube from a synergid to egg. (c) It helps in the entry of pollen tube into a synergid. (d) It prevents entry of more than one pollen tube into the embryo sac

Last Answer : (b) It guides pollen tube from a synergid to egg.

In angiosperms, functional megaspore develops into (a) embryo sac (b) ovule (c) endosperm (d) pollen sac.

Description : In angiosperms, functional megaspore develops into (a) embryo sac (b) ovule (c) endosperm (d) pollen sac.

Last Answer : a) embryo sac

Maize grain is (a) A seed (b) An embryo (c) An ovule (d) A fruit

Description : Maize grain is (a) A seed (b) An embryo (c) An ovule (d) A fruit

Last Answer : Ans:(d)

In gymnosperms, the pollen chamber represents (a) a cavity in the ovule in which pollen grains are stored after pollination (b) an opening in the megagametophyte through which the pollen tube approaches the egg(c) the microsporangium in which pollen grains develop (d) a cell in the pollen grain in which the sperms are formed.

Description : In gymnosperms, the pollen chamber represents (a) a cavity in the ovule in which pollen grains are stored after pollination (b) an opening in the megagametophyte through which the pollen tube approaches the ... pollen grains develop (d) a cell in the pollen grain in which the sperms are formed.

Last Answer : (c) the microsporangium in which pollen grains develop

Point out the odd one. (a) Nucellus (b) Embryo sac (c) Micropyle (d) Pollen grain

Description : Point out the odd one. (a) Nucellus (b) Embryo sac (c) Micropyle (d) Pollen grain

Last Answer : (d) Pollen grain

Megasporangium is equivalent to (a) nucellus (b) ovule (c) embryo sac (d) fruit

Description : Megasporangium is equivalent to (a) nucellus (b) ovule (c) embryo sac (d) fruit

Last Answer : (b) ovule

Male gametophyte of angiosperms is shed at (a) four celled pollen grain (b) three celled pollen grain (c) microspore mother cell (d) anther.

Description : Male gametophyte of angiosperms is shed at (a) four celled pollen grain (b) three celled pollen grain (c) microspore mother cell (d) anther.

Last Answer : b) three celled pollen grain

8. Embryo sac is located inside the 1. Stigma 2. Ovule 3. Micropyle 4. Style

Description : 8. Embryo sac is located inside the 1. Stigma 2. Ovule 3. Micropyle 4. Style

Last Answer : Ans: Ovule

n angiosperms, microsporogenesis and megasporo -genesis (a) involve meiosis (b) occur in ovule (c) occur in anther (d) form gametes without further divisions.

Description : n angiosperms, microsporogenesis and megasporo -genesis (a) involve meiosis (b) occur in ovule (c) occur in anther (d) form gametes without further divisions.

Last Answer : (a) involve meiosis

The part of the flower that is adapted to catch pollen is the: a) stigma b) style c) anther d) ovule

Description : The part of the flower that is adapted to catch pollen is the: a) stigma b) style c) anther d) ovule

Last Answer : ANSWER: A -- STIGMA

Top-shaped multiciliate male gametes and the mature seed which bears only one embryo with two cotyledons, are characterised features of (a) cycads (b) conifers (c) polypetalous angiosperms (d) gamopetalous angiosperms.

Description : Top-shaped multiciliate male gametes and the mature seed which bears only one embryo with two cotyledons, are characterised features of (a) cycads (b) conifers (c) polypetalous angiosperms (d) gamopetalous angiosperms.

Last Answer : (a) cycads

Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called (a) xenogamy (b) geitonogamy (c) karyogamy (d) autogamy.

Description : Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called (a) xenogamy (b) geitonogamy (c) karyogamy (d) autogamy.

Last Answer : (b) geitonogamy

Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:a) Autogamyb) Xenogamyc) Geitonogamyd) Karyogamy

Description : Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:a) Autogamyb) Xenogamyc) Geitonogamyd) Karyogamy

Last Answer : c) Geitonogamy

Which one of the following represents an ovule, where the embryo sac becomes horse-shoe shaped and the funiculus and micropyle are close to each other? (a) Amphitropous (b) Circinotropous (c) Atropous (d) Anatropous

Description : Which one of the following represents an ovule, where the embryo sac becomes horse-shoe shaped and the funiculus and micropyle are close to each other? (a) Amphitropous (b) Circinotropous (c) Atropous (d) Anatropous

Last Answer : (a) Amphitropous

What is the function of germ pore? (a) Emergence of radicle (b) Absorption of water for seed germination (c) Initiation of pollen tube (d) Release of male gametes

Description : What is the function of germ pore? (a) Emergence of radicle (b) Absorption of water for seed germination (c) Initiation of pollen tube (d) Release of male gametes

Last Answer : (c) Initiation of pollen tube

Metaxenia is the impact of a. Pollen on seed b. Pollen on fruit c. Pollen on ovule d. Pollen on ovary

Description : Metaxenia is the impact of a. Pollen on seed b. Pollen on fruit c. Pollen on ovule d. Pollen on ovary

Last Answer : Pollen on ovule

Difference between ovule and embryo sac. -Biology

Description : Difference between ovule and embryo sac. -Biology

Last Answer : answer:

Difference between ovule and embryo sac? -Biology

Description : Difference between ovule and embryo sac? -Biology

Last Answer : answer:

Difference between ovule and embryo sac. -Biology

Description : Difference between ovule and embryo sac. -Biology

Last Answer : answer:

Difference between ovule and embryo sac? -Biology

Description : Difference between ovule and embryo sac? -Biology

Last Answer : answer:

The ovule in which embryo sac become horse shoe shaped in: (a) Amphitropous (b) Camphylotropous (c) Orthotropous (d) Anatropous Ans. (a) ......................................................---------------------------......................................................................... BOTANY PRACTICE TEST SAMPLE QUESTIONS 1. Caruncle develops-from: (a) Outer integument (b) Ctyledon (c) Funiculus (d) Inner integuments

Description : The ovule in which embryo sac become horse shoe shaped in: (a) Amphitropous (b) Camphylotropous (c) Orthotropous (d) Anatropous Ans. (a) .................................. ... TEST SAMPLE QUESTIONS 1. Caruncle develops-from: (a) Outer integument (b) Ctyledon (c) Funiculus (d) Inner integuments

Last Answer : Ans. ((a))

.In a type of apomixis known as adventive embryony, embryos develop directly from the (a) nucellus or integuments (b) zygote (c) synergids or antipodals in an embryo sac (d) accessory embryo sacs in the ovule

Description : .In a type of apomixis known as adventive embryony, embryos develop directly from the (a) nucellus or integuments (b) zygote (c) synergids or antipodals in an embryo sac (d) accessory embryo sacs in the ovule

Last Answer : (a) nucellus or integuments

Embryo sac occurs in (a) embryo (b) axis part of embryo (c) ovule (d) endosperm.

Description : Embryo sac occurs in (a) embryo (b) axis part of embryo (c) ovule (d) endosperm.

Last Answer : (c) ovule

Female gametophyte of angiosperms is represented by (a) ovule (b) megaspore mother cell (c) embryo sac (d) nucellus.

Description : Female gametophyte of angiosperms is represented by (a) ovule (b) megaspore mother cell (c) embryo sac (d) nucellus.

Last Answer : (c) embryo sac

Ovule is straight with funiculus, embryo sac, chalaza and micropyle lying on one straight line. It is (a) orthotropous (b) anatropous (c) campylotropous (d) amphitropous.

Description : Ovule is straight with funiculus, embryo sac, chalaza and micropyle lying on one straight line. It is (a) orthotropous (b) anatropous (c) campylotropous (d) amphitropous.

Last Answer : a) orthotropous

An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is (a) hemitropous (b) campylotropous (c) anatropous (d) orthotropous.

Description : An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is (a) hemitropous (b) campylotropous (c) anatropous (d) orthotropous.

Last Answer : (a) hemitropous

Functional megaspore in an angiosperm develops into ? (1) Endosperm (2) Embryo sac (3) Embryo (4) Ovule

Description : Functional megaspore in an angiosperm develops into ? (1) Endosperm (2) Embryo sac (3) Embryo (4) Ovule

Last Answer : (2) Embryo sac

The floral part that produces pollen grains is (1) Sepal (2) Petal (3) Anther (4) Ovary

Description : The floral part that produces pollen grains is (1) Sepal (2) Petal (3) Anther (4) Ovary

Last Answer : (3) Anther Explanation: The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.

The floral part that produces pollen grains is - (1 ) Sepal (2) Petal (3) Anther (4) Ovary

Description : The floral part that produces pollen grains is - (1 ) Sepal (2) Petal (3) Anther (4) Ovary

Last Answer : (3) Anther Explanation: Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament

Which ones produce androgenic haploids in anther cultures? (a) Anther wall (b) Tapetal layer of anther wall (c) Connective tissue (d) Young pollen grains

Description : Which ones produce androgenic haploids in anther cultures? (a) Anther wall (b) Tapetal layer of anther wall (c) Connective tissue (d) Young pollen grains

Last Answer : (d) Young pollen grains

Which one of the following statements is not true? (a) Pollen grains of many species cause severe allergies. (b) Stored pollen in liquid nitrogen can be used in the crop breeding programmes. (c) Tapetum helps in the dehiscence of anther. (d) Exine of pollen grains is made up of sporopollenin.

Description : Which one of the following statements is not true? (a) Pollen grains of many species cause severe allergies. (b) Stored pollen in liquid nitrogen can be used in the crop breeding programmes. (c) Tapetum helps in the dehiscence of anther. (d) Exine of pollen grains is made up of sporopollenin.

Last Answer : (c) Tapetum helps in the dehiscence of anther.

The transfer of pollen grains from anther to stigma is called; a) Fertilization b) pollination c) Microsporogenesis d) Polyembryony

Description : The transfer of pollen grains from anther to stigma is called; a) Fertilization b) pollination c) Microsporogenesis d) Polyembryony

Last Answer : Ans. b) Pollination

The floral part that produces pollen grains is (1) Sepal (2) Petal (3) Anther (4) Ovary

Description : The floral part that produces pollen grains is (1) Sepal (2) Petal (3) Anther (4) Ovary

Last Answer : Anther

why sterile tissues degenerate in anther during the maturation of pollen grain -Biology

Description : why sterile tissues degenerate in anther during the maturation of pollen grain -Biology

Last Answer : answer:

Through which cell of the embryo sac, does the pollen tube enter the embryo sac? (a) Egg cell (b) Persistant synergid (c) Degenerated synergids (d) Central cell

Description : Through which cell of the embryo sac, does the pollen tube enter the embryo sac? (a) Egg cell (b) Persistant synergid (c) Degenerated synergids (d) Central cell

Last Answer : c) Degenerated synergids

In angiosperms, functional megaspore develops into:a) Embryo sacb) Ovulec) Endospermd) Pollen sac

Description : Vegetative propagation is Pistiaoccurs bya) StIn angiosperms, functional megaspore develops into:a) Embryo sacb) Ovulec) Endospermd) Pollen sacolenb) Offsetc) Runnerd) Sucker

Last Answer : Embryo sac

Haploid cells belong to: (a) Integument, pollen grain, endosperm (b) Embryo, endosperm and pollen grain (c) Megaspore, pollen grain, antipodal (d) Integument, pollen grain and antipodal

Description : Haploid cells belong to: (a) Integument, pollen grain, endosperm (b) Embryo, endosperm and pollen grain (c) Megaspore, pollen grain, antipodal (d) Integument, pollen grain and antipodal

Last Answer : Ans. ((c))

n Pinus/gymnosperms, the haploid structure are (a) megaspore, endosperm and embryo (b) megaspore, pollen grain and endosperm (c) megaspore, integument and root (d) pollen grain, leaf and root.

Description : n Pinus/gymnosperms, the haploid structure are (a) megaspore, endosperm and embryo (b) megaspore, pollen grain and endosperm (c) megaspore, integument and root (d) pollen grain, leaf and root.

Last Answer : (b) megaspore, pollen grain and endosperm

Double fertilisation is (a) fusion of two male gametes of a pollen tube with two different eggs (b) fusion of one male gamete with two polar nuclei (c) fusion of two male gametes with one egg (d) syngamy and triple fusion.

Description : Double fertilisation is (a) fusion of two male gametes of a pollen tube with two different eggs (b) fusion of one male gamete with two polar nuclei (c) fusion of two male gametes with one egg (d) syngamy and triple fusion.

Last Answer : (d) syngamy and triple fusion.

Double fertilization is (1) Fusion of two male gametes of a pollen tube with two different eggs (2) Fusion of one male gamete with two polar nuclei (3) Fusion of two male gametes with one egg (4) Syngamy and triple fusion

Description : Double fertilization is (1) Fusion of two male gametes of a pollen tube with two different eggs (2) Fusion of one male gamete with two polar nuclei (3) Fusion of two male gametes with one egg (4) Syngamy and triple fusion

Last Answer : (4) Syngamy and triple fusion

In angiosperms, pollen tube liberate their male gametes into the (a) central cell (b) antipodal cells (c) egg cell (d) synergids.

Description : In angiosperms, pollen tube liberate their male gametes into the (a) central cell (b) antipodal cells (c) egg cell (d) synergids.

Last Answer : d) synergids.

A fertilized ovule consisting of intact embryo, stored food and seed-coat which is viable and has got the capacity to germinate

Description : A fertilized ovule consisting of intact embryo, stored food and seed-coat which is viable and has got the capacity to germinate

Last Answer : Ans. Seed

The nutritive tissue around the embryo in seed is a. Endosmosis b. Endodermis c. Endosperm d. Embryo-sac

Description : The nutritive tissue around the embryo in seed is a. Endosmosis b. Endodermis c. Endosperm d. Embryo-sac

Last Answer : Endosperm

126.Plant group with largest ovule, largest tree and largest gametes is (a) gymnosperm (b) angiosperm (c) bryophyta (d) pteridophyta.

Description : 126.Plant group with largest ovule, largest tree and largest gametes is (a) gymnosperm (b) angiosperm (c) bryophyta (d) pteridophyta.

Last Answer : a) gymnosperm

Which one of the following statements regarding post-fertilisation development in flowering plants is incorrect? (a) Ovules develop into embryo sac. (b) Ovary develops into fruit. (c) Zygote develops into embryo. (d) Central cell develops into endosperm

Description : Which one of the following statements regarding post-fertilisation development in flowering plants is incorrect? (a) Ovules develop into embryo sac. (b) Ovary develops into fruit. (c) Zygote develops into embryo. (d) Central cell develops into endosperm

Last Answer : (a) Ovules develop into embryo sac.

Which one of the following is surrounded by a callose wall? (a) Male gamete (b) Egg (c) Pollen grain (d) Microspore mother cell

Description : Which one of the following is surrounded by a callose wall? (a) Male gamete (b) Egg (c) Pollen grain (d) Microspore mother cell

Last Answer : (d) Microspore mother cell

Which extraembryonic membrane in humans prevents desiccation of the embryo inside the uterus? (a) Yolk sac (b) Amnion (c) Chorion (d) Allantosis

Description : Which extraembryonic membrane in humans prevents desiccation of the embryo inside the uterus? (a) Yolk sac (b) Amnion (c) Chorion (d) Allantosis

Last Answer : (b) Amnion

Which treatment is given to the germinated seed iIn vernilization process ? a. Hot water treatment b. Cold treatment c. Oven dry treatment d. None of these

Description : Which treatment is given to the germinated seed iIn vernilization process ? a. Hot water treatment b. Cold treatment c. Oven dry treatment d. None of these

Last Answer : b. Cold treatment

Which treatment is given to the germinated seed iIn vernilization process ? a. Hot water treatment b. Cold treatment c. Oven dry treatment d. None of these

Description : Which treatment is given to the germinated seed iIn vernilization process ? a. Hot water treatment b. Cold treatment c. Oven dry treatment d. None of these

Last Answer : b. Cold treatment